Julian a



(No Model.)

' J. A. GILES.

PIPE WRENCH. y

Patented Oct. 30, 1888..

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ATTORNEYS,

nrrnn drains Partnr, @risica JULIAN A. G-ILES, OF OSVEGO, NE\'V YORK, ASSIGNGR OF THREE-FOURTHS T O C. C. PLAGE AND E. A. VAN HOB-NE, BOTH OF SAME PLAGE.

PIPEMWRENCH.

SPECIFICATION forming part of Leiters Patent No. 391,957, dated october so, ieee.

A ppliea tion filed Jun e 11, 1888.

To @ZZ whom, it 17mg concern:

Be it known that I, JULIAN A. Gruss, of Oswego, in vthe county of Oswego, in the State of New York, have invented new and useful Improvements in Pipc-Vrenches, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to the class of pipero wrenches in which the adjustable jaw is sustained on the main shank of the wrench by a serrated block riding on a serrated portion of said shank and connected to a shank formed.

on the adjustable jaw.

My present invention consists in an improved construction and combination of parts which render the wrench more efcient and convenient in its operation, as hereinafter more fully described, and specifically set forth 2o in the claims.,

In the accompanying drawings, Figures 1 and 2 are respectively side and front views of my improved pipe-wrench. Figs. 8 and 4 are transverse sections, respectively, on lines x .fr and yy, Fig. l; and Fig. 5 is a longitudinal section on line e', Fig. 2.

Similar letters of reference indicate cor,re spending parts.

A denotes the main shank of the wrench, having the jaw C fixed thereto or formed integral therewith. The back of said shank is serrated or provided with a series of teeth, as shown at a in Fig. l ofthe drawings. On this serrated portion of the hack of the shank A rides a correspondingly-serrated block, B, and from this block, at opposite side of the aforesaid shank, are extended the links Z Z,whieh I hinge to said block, as shown, and lie obliquely or inclined across the side ofthe shank, and are formed with eyes c e a short distance outward from the front ofthe shank, and also with shoulders I) above said eyes.

C designates the adjustable jaw, which is formed with a short shank, A, the lower end 4.5 of which is hinged t0 the eyes e e by a pin, f,

passing through the latter and through the intervening end portion of the shank vA. The jaw C',with its shank A, is sustained in front ofthe shank A by means of stops or lugs o o,

Serial No. 276,675). (No inoilrl l projecting from opposite sides of the shank 5c A and adapted to engage or rest against the shoulders b b.

Between the two shanks A A is interposed the spring d, which is secured at one end to the shank A and presses with its opposite end 5 5 against the front of the shank A, and in this manner crowds the shank A from the shank A and causes the former to normally rest with its stops o 0 against the shoulders I) b. The shank A is also formed at opposite sides with 6o flanges c c, which embrace the sides of the main shank A, and thus aid in sustaining the short shank A laterally,and at the same time to inelose the spring d, so as to protect the same and prevent the lateral displacement of the free end thereof.

My invention possesses many advantages over prior devices of this class. l dispense `with the'thunib-screws and latches employed in some pipe-wrenches for adjusting the inovablejaw. I obtain a long bearing engaging a series of the notches on the shank ot' the wrench,and thus provide a secure hold on the said shank and by the pivotal connection of the inclined links to the serrated block, rest- 75 ing against the back of the shank of the wrench above the connection of the links to the heel of thcjaw, with the said heel resting directly against the front ofthe shank, the wrench, when operated on a pipe or rod and subjected to 8c straimtends to tighten the hold ol" the serrated block on the notched portion of the shank. Besides this, the adjustment of the movable jaw to different-sized pipes or rods to be operated on requires no manipulation of thumbscrews or latches or levers, but is effected in the simplest, most convenient, and expeditious manner by merely pressing said j aw toward the shank so as to release the stop o from the link Z,and then sliding the saidjaw up to go the pipe or rod to be gripped.. The serrated block, becoming thereby loosened from the shank, is readily slipped upto obtainits requisite hold on the shank. The spring d, crowding the jaw from the shank and causing the stop o to engage thelink Z, serves to retain the jaw in its adjusted position.

lt will therefore be observed that my improved pi pe-wrench can be easily adjusted by one hand, and is Very strong, elicient, and durable.

The shank A is provided with the usual handle, 71, and the gripping-face of the jaws C C areserrated and stand at such angles that in drawing the handle h in the direction in which the jaws stand said jaws become firmly gripped on the pipe, the jaw C being crowded against the main shank A and supported thereby. To release the jaws from the pipe, it is only necessary to swing the wrench in opposite direction from that aforesaid. In this movement of the wrench the jaw C moves from the shank A and swings from the pipe suliciently to allow it to slide thereon and obtain a new hold forv the next turn ofthe wrench.

Having described my invention, what I claim as new, and desire to securcby Letters Patent, 1s-

1. In combination with the shank A, provided with the serrated back a, and with the fixed jaw C, the serrated block B, riding on said back, the links Z Z, hinged to said block, and the jaw C', sustained on the opposite end of said links, as set forth and shown.

2. In combination With the shank A, pro vided with the serrated back a, and with the fixed jaw G, the serrated block B, riding on said back, the links Z Z, hinged to said block and formed at the front of the shank with the shoulder b, the jaw C', formed with the shank A and pivoted at the end ofsaid shank to the links, and the stop o on the. shank A, adapted to engage the aforesaid shoulder, substantially as described and shown. r

3. The improved pipe-wrench consisting of the shank A, provided with the serrated back ce, and with the xed jaw C, the serrated block B, riding on said back, the links Z Z, hinged to said block and provided with the `shoulder b, the jaw C', formed with the shank A, hinged to the links ZZ and provided with the stops o o, and with flanges c c, embracing the sides of the shank A, and the spring d, interposed bctween the two shanks A A and inclosed between the anges c c, all constructed and combined substantially in the manner specified and shown.

In testimony whereofl have hereunto signed my name, in the presence of two witnesses, at Oswego, in the county of Oswego, in the State of New York, this 7th day of June, 1888.

JULAN A. GILES. [n s] Witnesses:

A. N. RADCLIFFE, ERNEs'r W. RICE. 

